// GitHub

dotnet/winforms

[main] Source code updates from dotnet/dotnet

Merged or Closed

Closed or merged PR "[main] Source code updates from dotnet/dotnet" (#15081)
on 11 September 2026 by dotnet-maestro[bot]

Add WinForms specific code review skill for GitHub Copilot

Merged or Closed

Closed or merged PR "Add WinForms specific code review skill for GitHub Copilot" (#15079)
on 10 September 2026 by Shyam-Gupta

Reinstate state-aware field outlines for Net11

Open

Open PR "Reinstate state-aware field outlines for Net11" (#15080)
on 10 September 2026 by ricardobossan

Isolate ListViewItem hover tests from the physical cursor

Open

Open PR "Isolate ListViewItem hover tests from the physical cursor" (#15078)
on 10 September 2026 by Eales

DataGridViewDarkModeTheming: DataGridViewComboBoxColumn and DataGridViewButtonColumn do not appear to fully adopt dark mode colors after enabling dark mode theming

Open

Open issue "DataGridViewDarkModeTheming: DataGridViewComboBoxColumn and DataGridViewButtonColumn do not appear to fully adopt dark mode colors after enabling dark mode theming" (#15077)
on 10 September 2026 by Amy-Li03

Test InputLanguage without modifying the Windows language list

Open

Open PR "Test InputLanguage without modifying the Windows language list" (#15076)
on 10 September 2026 by Eales

Fix DataGridView ComboBox and Button cell rendering in dark mode

Open

Open PR "Fix DataGridView ComboBox and Button cell rendering in dark mode" (#15075)
on 10 September 2026 by LeafShi1

Merging internal commits for release/8.0

Merged or Closed

Closed or merged PR "Merging internal commits for release/8.0" (#15071)
on 10 September 2026 by dotnet-bot

[main] Source code updates from dotnet/dotnet

Merged or Closed

Closed or merged PR "[main] Source code updates from dotnet/dotnet" (#15074)
on 10 September 2026 by dotnet-maestro[bot]

Revert "Fix GroupBox Standard and Popup layout overlap when switching to NET11 visual styles (#14891)"

Merged or Closed

Closed or merged PR "Revert "Fix GroupBox Standard and Popup layout overlap when switching to NET11 visual styles (#14891)"" (#15069)
on 10 September 2026 by LeafShi1

[release/11.0] Enable DataGridView dark mode theming via AppContext switch

Open

Open PR "[release/11.0] Enable DataGridView dark mode theming via AppContext switch" (#15073)
on 10 September 2026 by github-actions[bot]

[release/10.0] Source code updates from dotnet/dotnet

Merged or Closed

Closed or merged PR "[release/10.0] Source code updates from dotnet/dotnet" (#15062)
on 10 September 2026 by dotnet-maestro[bot]

Merging internal commits for release/9.0

Merged or Closed

Closed or merged PR "Merging internal commits for release/9.0" (#15072)
on 10 September 2026 by dotnet-bot

[release/9.0] Update dependencies from dotnet/arcade

Merged or Closed

Closed or merged PR "[release/9.0] Update dependencies from dotnet/arcade" (#15061)
on 09 September 2026 by dotnet-maestro[bot]

Fix ToolStripManager restore issue when ToolStripPanel padding is asymmetric

Open

Open PR "Fix ToolStripManager restore issue when ToolStripPanel padding is asymmetric" (#15070)
on 09 September 2026 by KSaiSivani

Preserve logical ExecutionContext when marshaling callbacks with Control.Invoke/BeginInvoke

Open

Open issue "Preserve logical ExecutionContext when marshaling callbacks with Control.Invoke/BeginInvoke" (#15068)
on 09 September 2026 by Phogat82

TableLayoutPanel layout has quadratic reservation-row advancement for deep row spans

Open

Open issue "TableLayoutPanel layout has quadratic reservation-row advancement for deep row spans" (#15066)
on 09 September 2026 by Eales

Improve TableLayout ReservationGrid row advancement performance

Open

Open PR "Improve TableLayout ReservationGrid row advancement performance" (#15065)
on 09 September 2026 by Eales

[release/11.0] Source code updates from dotnet/dotnet

Merged or Closed

Closed or merged PR "[release/11.0] Source code updates from dotnet/dotnet" (#15064)
on 09 September 2026 by dotnet-maestro[bot]

[main] Source code updates from dotnet/dotnet

Merged or Closed

Closed or merged PR "[main] Source code updates from dotnet/dotnet" (#15063)
on 09 September 2026 by dotnet-maestro[bot]

[release/11.0] Source code updates from dotnet/dotnet

Merged or Closed

Closed or merged PR "[release/11.0] Source code updates from dotnet/dotnet" (#15060)
on 08 September 2026 by dotnet-maestro[bot]

Fix resource leaks in WinForms native-object cleanup

Open

Open PR "Fix resource leaks in WinForms native-object cleanup" (#15059)
on 08 September 2026 by JeremyKuhne

Fix TextBox UI Automation fragment root

Open

Open PR "Fix TextBox UI Automation fragment root" (#15058)
on 08 September 2026 by KSaiSivani

Controls from the toolbox cannot be dropped into UserControl docked in a Panel

Open

Open issue "Controls from the toolbox cannot be dropped into UserControl docked in a Panel" (#15057)
on 08 September 2026 by a-solovyev-dx

[release/9.0] Update dependencies from dotnet/arcade

Merged or Closed

Closed or merged PR "[release/9.0] Update dependencies from dotnet/arcade" (#15054)
on 08 September 2026 by dotnet-maestro[bot]

Fix ListView Details view cell retrieval and full-row accessibility

Open

Open PR "Fix ListView Details view cell retrieval and full-row accessibility" (#15056)
on 08 September 2026 by LeafShi1

RichTextBox is not fully borderless with BorderStyle=None under VisualStylesMode.NET11

Open

Open issue "RichTextBox is not fully borderless with BorderStyle=None under VisualStylesMode.NET11" (#15055)
on 08 September 2026 by Olina-Zhang

[release/11.0] Source code updates from dotnet/dotnet

Merged or Closed

Closed or merged PR "[release/11.0] Source code updates from dotnet/dotnet" (#15052)
on 08 September 2026 by dotnet-maestro[bot]

Disabled RichTextBox renders BackColor in padding area but not in client area under NET11 VisualStylesMode

Open

Open issue "Disabled RichTextBox renders BackColor in padding area but not in client area under NET11 VisualStylesMode" (#15053)
on 08 September 2026 by Olina-Zhang

[Bug]: NotifyIcon displays an empty, miniature black tooltip box when Text is string.Empty on Windows 11

Open

Open issue "[Bug]: NotifyIcon displays an empty, miniature black tooltip box when Text is string.Empty on Windows 11" (#15051)
on 07 September 2026 by Yukki76